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A176487 as a triangular array

1
11
151
113131
12971291
161311311611
11251205243512051251
12534313156531565343132531
1509146358828915625988289146355091
11021478754552751310479131047945527547875

A176487 as a square array

1111111111
151329611252535091021
11371311120543131463547875
12931124351565388289455275
1611205156531562591310479
11254313882891310479
125314635455275
150947875
1
1111111111
151329611252535091021
11371311120543131463547875
12931124351565388289455275
1611205156531562591310479
11254313882891310479
125314635455275
150947875
1